61
To adjust the low-fire setting of the
High-End Valve
(AV1000-4000)
1. Adjustment of low fire bias
2. Connection for air pressure (+) sensing line
3. Connection for the air pressure (-) sensing line
4. Connection for the gas pressure (-) sensing line
5. Connection for the gas pressure (+) sensing line
6. Position indicator
All these connections are stamped on the aluminum casting
Use the
Advantus
Control Panel
1) Press
[DIAGNOSTICS]
button
2) Press
[Diagnostic Tests]
button
3) Move the firing rate slider to firing rate (%) indicated on test reports.
4) Press
[Start Test]
to operate the boiler at max fire for 5 minutes.
Increase CO
2
Decrease CO
2
Low Fire Adjustment
Clockwise
Counter-Clock Wise
When the correct combustion values are achieved replace the screw cap back on to the gas valve.
To adjust the high-fire setting of the
High-End Valve
(AV1000-4000)
Two manometers should be connected to the
Advantus
before proceeding to the next step to simultaneously monitor the air and gas
signal. Refer to Section 3.8 of this manual for details on connecting manometers.
After the low fire settings are stable, ramp the boiler firing rate to 100% using the boiler control and bring the system temperatures up to
130°F or to highest system design temperatures to minimize or eliminate condensate.
Use the
Advantus
Control Panel:
5) Press
[DIAGNOSTICS]
button
6) Press
[Diagnostic Tests]
button
7) Press
[Maximum Modulation]
button
8) Press
[Start Test]
to operate the boiler at max fire for 5 minutes.
Increase CO
2
Decrease CO
2
High Fire Adjustment
Counter-Clock Wise
Clockwise
Turn the metering valve 1/8 turn in either way for each adjustment to keep track of the adjustments. After adjusting the valve wait a
moment for the combustion levels to stabilize before attempting to make any further adjustments. Continue this procedure until
combustion levels are satisfied.
Figure 41: SKP55 Gas Valve
Summary of Contents for ADVANTUS AVH 500
Page 2: ......
Page 3: ......
Page 38: ...31 Figure 23 Recommended Piping with Reverse Return and Variable Primary Flow...
Page 88: ...81 PART 12 EXPLODED VIEW Figure A...
Page 89: ...82 Figure B FAN BURNER ASSEMBLY AV500 600 some items may not be as shown...
Page 90: ...83 Figure C FAN BURNER ASSEMBLY AV800 4000 some items may not be as shown...
Page 91: ...84 Figure D Figure E...
Page 92: ...85 Figure F Figure G...
Page 93: ...86 Figure H CONTROL BOARD ASSEMBLY...
Page 100: ...93 PART 13 ELECTRICAL DIAGRAMS...
Page 101: ...94...
Page 102: ...95...